Solve the system of equations.5x + 2y + z = 64x - 5y - z = 92x + y + 5z = 25
A. {(1, 5, -2)}
B. ?
C. {(5, -2, 1)}
D. {(1, -2, 5)}
Answer: D
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Solve the problem.The parking lot at a grocery store has 72 cars in it. 50% of the cars are two-toned. How many cars are two-toned?
A. 36 cars B. 14 cars C. 144 cars D. 360 cars
Use the discriminant of the equation to determine the number of x-intercepts.f(x) = x2 + 8x + 21
A. Two x-intercepts B. One x-intercept C. No x-intercepts
Solve. Provide answers in interval notation.(x + 7)(x + 3) ? 0
A. (-7, -3) B. (-?, -7] ? [-3, ?) C. [-7, -3] D. (-?, -7) ? (-3, ?)
Solve the problem.Most video games need to determine whether two objects touch, such as a character and a wall or a missile and an asteroid; this is known as collision detection. One method for doing this is to find a circle that bounds each object. If the distance between the centers of the two objects is less than or equal to the sum of the two radii of the circles that the objects are bounded by, the two objects are touching. Determine whether Object 1 with radius 112 pixels and center at (432, 195) touches Object 2 with radius 154 pixels and center at (673, 310).
A. no B. yes